Upvote:1
You have to go a bit old-style and search through academic publications on the artist. While the Internet can help a lot for finding specific books, catalogues and articles that may be online; unless you know the location or owner of the artwork it will be hard to find a "search tool" that just gives you an instant result and info on particular "untitled" works, specially with artists as prolific as Basquiat. Museums and galleries websites can also help, specially the bigger ones. Google Academic might be a bit better than just Google.
Upvote:1
You might try reverse image searching to find websites with this picture. This chrome extension is a good way to find other websites.